A383367 a(n) is the least integer k such that A383359(n)^4 can be expressed as a sum of squares of k consecutive integers.

2, 177, 352, 1536, 2401, 40898, 60625, 185761, 19512097, 47761921, 1224370081, 7957888849, 10842382346, 11474926944, 12230369281, 190412616875, 497818686976, 72899460001, 1384334025217, 313455536641

Offset: 1

Author

Zhining Yang, May 01 2025

Keywords

• nonn
• more

Comments

Terms of A383654 such that the consecutive integers are all positive.

Examples

			a(2) = 177 because A383359(2)^4 = 295^4 can be expressed as sum of squares of 177 consecutive integers: 295^4 = 6453^2 + 6454^2 + ... + 6628^2 + 6629^2.
		

Crossrefs

Cf. A001032, A189173, A383359, A383654.

Extensions

a(11)-a(18) from Xianwen Wang, May 04 2025

a(19)-a(20) from Xianwen Wang, May 08 2025